Established in 1965, Golds Gym is one of the largest global co-ed gyms in the world. The gym has more than 40 locations across the United States and in over 30 countries around the world. Based in Eau Claire, Wis., it offers health and fitness programs, including personal training and customized conditioning programs. In addition, Golds Gym offers a wide array of heart-pumping group exercise classes. The gym has partnerships with Walmart, Costco.com, Barnes & Noble and American Airlines.